Tektronix WFM7020 Technical Reference

Specifications
Table 25: Embedded Audio Extraction (cont.)
Characteristic Performance requirement Reference information
Maximum Number of Channels
Monitored for Activity
Monitoring done by audio board only. Can
only monitor channels set up for display
Audio levels
Bars display signals up to 0 dBFS
Must not exceed maximum power
specification on analog outputs. Configure
output attenuation if necessary
Table 26: Analog Audio Inputs
Charact
eristic
Perform
ance requirement
Referen
ce information
Number o
f Channels
Provide
s up to two sets of six channels of
professional balanced differential inputs for
each video input, 12 channels total
Input Connector
Balanced, unterminated via rear panel
connector
Use62p
in, 3 row, DSUB connector, only 2
rows of 42 pins are connected
Level
Meter Accuracy ov er
Frequency
±0.3 dB from 20 Hz to 20 kHz, 24 dBu to
–16 dBu sine wave input, Peak Ballistic
mode.
Within 5 Hz of some submultiples of
the sampling frequency it may be attenuated
additionally, as shown below. Sampling
freq
uency refers to the 192 kHz upsampled
data used for the bar ballistics. For example:
1/12
th
of rate –0.30 dB (16 kHz ±5 Hz)
1/1
6
th
of rate –0.17 dB (12 kHz ±5 Hz)
1/20
th
of rate –0.11 dB (9.6 kHz ±5 Hz)
Cross Talk, Typical ≤ –90 dB from 20 Hz to 20 kHz, inputs driven
from < 600 Ω source impedance
De
fined as the displayed bar level in any
channel that results from a full scale signal
on a different input pair than that input
Maximum Input Levels
+ 24 dBu ±0.3 dBu (see Level Meter
A
ccuracy over Frequency above)
Must not exceed maximum power
specification on analog outputs. Configure
o
utput attenuation if necessary
R
esolution Sampling
24 bits at 48 kHz
Input Impedance
24 kΩ
Off Isolation ≤ –90 dB, from 20 H z to 20 kHz. Unused
input driven from < 600 Ω source impedance
Defined as the d isplayed bar level that results
from a full scale signal on any pair of the
unused input
Analog Input to Digital Output
Distortion (THD+N), Typical
<0.03% from full scale to –30 dBFS , 20 Hz to
20 kHz
24 Waveform Monitors Specifications and Performance Verification

Tektronix WFM7020 Specifications

General

Brand	Tektronix
Model	WFM7020
Category	Monitor
Language	English